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Finding the Fourth Proportional to 10,602.40, 14,656.80 and 8,096.80

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Solution

The fourth proportional to 10,602.40, 14,656.80 and 8,096.80 is: 11,193.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,602.40 : 14,656.80 = 8,096.80 : x
  2. Step 2: Convert to fraction form
    10,602.40/14,656.80 = 8,096.80/x
  3. Step 3: Cross multiply
    10,602.40x = 14,656.80 × 8,096.80
  4. Step 4: Simplify right side
    10,602.40x = 118,673,178.24
  5. Step 5: Solve for x
    x = 118,673,178.24/10,602.40
  6. Step 6: Final answer
    x = 11,193.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.